Class 6 Science Chapter 6 NCERT Solutions Hinglish mein: Materials Around Us

Curiosity (Reprint 2026-27) ke Chapter 6, Materials Around Us, ki Activities 6.1 se 6.8, text ke sawaal, “Let us play” ke do khel, saare 10 “Let us enhance our learning” sawaal aur Learning further ke kaamon ke jawab. Page numbers book se match karte hain. Aas-paas ki cheezon waali activities ke sample jawab hain; tumhare jawab alag honge. Short notes: Chapter 6 notes.

Aas-paas ki cheezein (pages 101–102)

Activity 6.1, sample table:

Main dekhta hoon	Kis material se bani hai
Notebook	Kaagaz
Pen	Plastic, dhaatu, syaahi
School bag	Kapda ya plastic, dhaatu ki zip
Desk	Lakdi, loha
Khidki	Kaanch, lakdi ya aluminium
Paani ki botal	Plastic ya steel

Cheezein alag-alag materials se banti hain, aur ek cheez mein kai materials ho sakte hain.

Materials ko group karna (pages 103–106)

Activity 6.2: Fig. 6.1 ki cheezon ko aakaar (gol ya chapti), rang, hardness ya softness, chamak ya bina chamak, ya material ke hisaab se group kar sakte hain. Dost alag properties chun sakte hain, isliye unke groups alag ho sakte hain. Seekh ye hai ki ek cheez alag materials se ban sakti hai, aur ek material se kai cheezein. Common property se grouping classification hai.

Activity 6.3, gilaas ke materials: kaanch, steel, taamba, peetal, terracotta (paki mitti) aur plastic, kyunki ye paani rok sakte hain.

Kapde ka gilaas paani kyun nahi rakh sakta? Kapda paani sokh leta hai aur use aar-paar jaane deta hai.

Kya kaagaz jaise materials se khaana pakaane ke bartan banaana achha hai? Nahi. Kaagaz aag par jal jaata hai aur geela hokar gal jaata hai, isliye garam khaana ya paani nahi rakh sakta.

Activity 6.4, uchhalti gendein (sample):

Gend	Uchhaal
Tennis ball	Ooncha
Cricket ball	Madhyam se kam
Haath ki exercise ball	Kam

Tennis ball sabse ooncha uchhalti hai. Alag khelon ki gendein alag materials se isliye banti hain kyunki har khel ko khaas uchhaal, wazan, sakhti aur pakad chahiye. Cricket ball se tennis nahi khel sakte: wo sakht aur bhaari hai aur bahut kam uchhalti hai, aur racket ko nuksaan pahuncha sakti hai ya kisi ko chot laga sakti hai.

Fig. 6.4, grouping: cheezon ko aakaar, rang, material, ya kaam, jaise likhne, khaane ya rakhne ki cheezein, ke hisaab se group kar sakte hain.

Lustre aur hardness (pages 106–108)

Sorting challenge: taambe ka taar, aluminium foil aur peetal, kaanse aur steel ki cheezein chamakti hain, isliye lustrous hain; kaagaz, cardboard, lakdi aur chalk nahi chamakte, isliye non-lustrous hain.

Kya saare lustrous materials dhaatu hain? Nahi. Polish, ya plastic ya wax ki parat, lakdi, kaagaz ya doosre materials ko bhi chamka deti hai.

Chaabi se khurochna: mombatti, chalk aur lakdi aasaani se khurach jaate hain; aluminium thodi mehnat se; loha aur patthar mushkil se.

Activity 6.5, sample Table 6.3:

Cheez	Hard ya soft, aur material
Eent	Hard, paki mitti (diya hua)
Paani ki botal	Hard, plastic ya steel (patli plastic ki botal dab jaati hai)
Takiya	Soft, kapde ke khol mein rui ya foam
Gilaas	Hard, kaanch ya steel
Table	Hard, lakdi ya loha
Sweater	Soft, oon

Transparent, translucent aur opaque (pages 108–110)

Unhone chhupne ke liye ye jagahein kyun chuni? Ghulan (deewar) aur Sheeta (bada ped) ne opaque cheezein chuni, taaki wo bilkul na dikhein. Sara ne frosted glass ka darwaaza chuna, isliye wo sirf dhundhli dikhi. Kya Sheeta ka bhai band lakdi ki khidki se unhe dekh paata? Nahi, lakdi opaque hai.

Fig. 6.5: A (Ghulan, deewar): opaque; B (Sheeta, ped): opaque; C (Sara, frosted glass): translucent; D (Sheeta ka bhai, kaanch ki khidki): transparent.

Activity 6.6, Table 6.4: transparent: kaanch ka gilaas, khidki ka kaanch; translucent: butter paper, frosted glass; opaque: rubber (eraser), lakdi ka board.

Kya paani transparent hai? Kya ise opaque bana sakte hain? Saaf paani transparent hai. Bahut saari mitti, syaahi ya doodh milaane se ye pehle dhundhla aur phir opaque ho jaata hai.

Soluble aur insoluble (pages 110–112)

Activity 6.7, Table 6.5:

Material	Paani mein kya dikha
Cheeni	Gaayab (soluble)
Namak	Gaayab (soluble)
Chalk powder	Gaayab nahi; paani doodhiya, phir neeche baith jaata hai
Ret	Gaayab nahi; tale mein baith jaati hai
Buraada	Gaayab nahi; tairta hai

Kya paani mein daali har cheez gaayab ho jaati hai? Nahi. Ret, chalk powder aur buraada der tak hilaane par bhi rehte hain.

Kya tel, sirka aur shahad paani mein ghulte hain? Sirka aur shahad paani mein poori tarah mil jaate hain; tel nahi milta aur upar alag parat banaata hai. Gases: oxygen paani mein ghulti hai, jo paani ke jaanwaron aur paudhon ke liye zaroori hai, jabki kuch doosri gases nahi ghulti.

Mass aur volume (pages 112–115)

Activity 6.8 (sample): cup A (paani) sabse halka hai; cup B (ret) aur C (kankad) utne hi paani se bhaari hain. Bhaari cup ka mass zyada hai. (Ret aur kankad mein kaun bhaari hai, ye is par nirbhar hai ki wo kitne paas-paas baithe hain.)

Paani ka star alag kyun hai? Dono gilaas utna hi rakh sakte hain, par ek mein paani kam hai, isliye paani kam jagah gherta hai: uska volume kam hai.

Jug ka saara paani khaali botal mein kyun nahi gaya? Jug ke paani ka volume botal ki kshamta se zyada tha, isliye bacha paani bahar beh gaya.

Matter kya hai? (pages 115–116)

Saare materials mein dikhne waali properties: mass aur volume. Kya hawa matter hai? Haan: wo jagah gherti hai, gubbaare ko bhar deti hai, aur uska mass hai, kyunki hawa bhari gend pichki gend se bhaari hoti hai. Kya aas-paas ke saare materials matter hain? Haan, sabka mass hai aur sab jagah gherte hain.

Think it over: plastic, vardaan ya abhishaap? Charcha ke points. Vardaan: plastic halka, sasta, waterproof aur mazboot hai, isliye ilaaj ke saamaan, khaane ko saaf rakhne waali packing, pipes aur anginat cheezon mein use hota hai. Abhishaap: zyaadatar plastic saikdon saal tak nahi galta, ek baar use hone waala plastic zameen, nadiyon aur samudron mein kachra failaata hai, jaanwaron ko nuksaan pahunchata hai aur naaliyan band karta hai, aur jalaane par hawa ko ganda karta hai. Soch-samajhkar use, dobara use aur recycling se nuksaan kam hota hai.

Ayurveda ke 20 gun (Do you know?): das jode hain bhaari aur halka, dheema aur tez, thanda aur garam, tailiya (snigdha) aur rookha, chikna aur khurdura, thos aur drav, naram aur sakht, sthir aur chalne waala, sookshm aur sthool, aur bina chipchipa aur chipchipa. (Book chalne waale gun ko ‘khala’ likhti hai; Sanskrit mein ise aam taur par ‘chala’ kehte hain.)

Let us play (pages 118–119)

1. Saathi dhoondho (sample jode): loha aur taamba, dono lustrous dhaatuein; kaanch aur transparent; lakdi aur opaque; plastic aur botal; aur solid ke saath loha, taamba, lakdi, kaanch aur plastic, jo sab thos hain.

2. Word-hub: ye class ka bingo khel hai. Nau shabd chunkar grid mein likho, aur jab shabd ya uska matlab padha jaaye to tick karo.

Let us enhance our learning (pages 119–121)

1. Rasoi mein sorting

Sample jawab: cheezon ko prakaar aur kaam se rakho: anaaj aur daalein label lage transparent dabbon mein saath; masaale chulhe ke paas ek tray mein; tel aur liquids neeche ki shelf par; roz ki cheezein aage aur kabhi-kabhi waali peechhe.

2. Shabd sahi karke milaao

(i) TREMAT → MATTER: (b) jagah gherta hai aur mass hai. (ii) ULSBELO → SOLUBLE: (d) paani mein poori tarah mil jaata hai. (iii) TNERPASNART → TRANSPARENT: (a) iske aar-paar cheezein saaf dikhti hain. (iv) ERUSTL → LUSTRE: (c) chamakdaar satah.

3. Transparent dabbe

Taaki log bina khole dekh sakein ki andar kya hai aur kitna bacha hai. Isse cheezein jaldi milti hain, saamaan ki quality jaanch sakte hain, aur dukaanon mein grahakon ko saamaan dikhta hai.

4. Sahi ya galat

(i) Galat: lakdi opaque hai jabki kaanch transparent hai. (ii) Sahi. (iii) Sahi. (iv) Galat: seb matter hai kyunki wo jagah gherta hai aur uska mass hai.

5. Kursiyon ke materials

Property	Sabse zyada fit materials
(i) Hardness	Loha, patthar, cement aur lakdi
(ii) Halkapan	Plastic aur baans
(iii) Sardi mein thandi na lage	Lakdi, baans aur plastic
(iv) Aasaani se saaf aur naya dikhe	Plastic aur loha (rangeen ya steel)

6. Kachre ke dabbe

• Khaane ka kachra: dhakkan waala plastic ya dhaatu ka dabba. Wo paani na sokhe, na tapke, aasaani se dhul jaaye, aur dhaatu ho to jaldi jang na khaaye.
• Toota kaanch: dhaatu ya mote plastic ka mazboot, sakht dabba, taaki nukeele tukde use kaat na sakein.
• Raddi kaagaz: koi bhi halka dabba, jaise cardboard ka box, bent ya plastic ki tokri, ya kapde ya jute ka thaila.

Sochne waali properties hain sakhti aur mazbooti, material paani sokhta hai ya jang khaata hai, safaai mein aasaan hai ya nahi, aur uska wazan.

7. Hawa aur lakdi ka darwaaza

(i) transparent, opaque.

8. Material X aur Y

X hard hai, kyunki wo sakht hai aur dabaane par aakaar nahi badalta, aur wo paani mein ghul jaata hai: wo cheeni ka cube ya sendha namak ka tukda ho sakta hai. Y soft hai, kyunki dabaane par aasaani se aakaar badalta hai, aur wo nahi ghulta: wo sponge, modelling clay ka gola ya rubber ka tukda ho sakta hai.

9. Main kaun hoon?

(i) (a) Koi dhaatu, jaise aluminium foil, taamba ya sona. (b) Sponge, rui ya foam. (c) Cheeni ka cube ya namak ka daana. (d) Translucent material, jaise frosted glass ya butter paper. (e) Hawa.

(ii) Sample: “Main transparent hoon, main liquid hoon, aur bahut si cheezein mujhme ghul jaati hain. Main kaun hoon?” (Paani.)

10. Soluble aur insoluble jode

• Soluble: paani mein shahad, aur paani mein glucose (sirka bhi paani mein poori tarah mil jaata hai).
• Insoluble: paani mein sarson ka tel, jo parat banaata hai, aur paani mein aata, jo neeche baith jaata hai.

Learning further (page 121)

• Recycle hone waale materials: kaagaz aur cardboard, kaanch, loha, aluminium, taamba aur peetal jaisi dhaatuein, aur kai tarah ka plastic.
• Kabaadiwalon ka survey (sample nateeje): wo material jaanchte hain, jaise lohe ke liye chumbak, ya taambe aur peetal ke liye rang aur chamak, aur use taulte hain. Bahut ganda ya geela kachra, mile-jule ya kai parat waale packet, thermocol aur tooti chini mitti aksar nahi lete, kyunki inhe alag karna ya bechna mushkil hai.
• Ghar ki cheezon ka vargikaran: unhe dhaatu, plastic, lakdi, kaanch ya kapde; hard ya soft; aur transparent ya opaque mein baanto. Properties hi kaam samjhaati hain: kaanch ke dabbon mein andar dikhta hai, steel ki kadaahi garmi sehti hai, aur kapde ke thaile naram aur halke hote hain.
• Bekaar cheezon se kaam ki cheez: jaise purani botal se pen stand, ya tin ke dabbe se gamla. Charcha karo ki wo kitna achha kaam karti hai aur kya sudhaar ho sakta hai.

Aur practice ke liye padho materials ki properties, transparent, translucent aur opaque aur soluble aur insoluble substances.